I asked him a short series of clinical questions instead, the ones we use to confirm a patient is fully oriented, and he answered every one correctly in a small voice.

Then I set the plastic bag of capsules on the bedside table with a sharp little tap.

“How long have you been taking these?”

He looked toward the window.

“They’re just basic vitamins, Vivienne.”

“Don’t insult my intelligence.” I told him, in plain clinical language, exactly what had almost killed him — that his heart had come within a hair of stopping because he had stripped his body of the fluid and the minerals it needed to beat, that the pattern in his blood was the signature of exactly the kind of illegal compound now sitting in a bag on his bedside table.

His jaw worked for a while before he spoke.